SpriteKit shader crash iOS 9: SKDefaultShading, gl_FragCoord

Question

Just installed the iOS 9 open beta (version 3) and now I\'m having loads of problems with SpriteKit shaders. On iOS 8 the following code worked just fine:

_fontS         


        

Answer 1

I came here after seeing the message use of undeclared identifier 'gl_FragCoord' but eventually I could solve my problem by replacing

gl_FragCoord.xy / u_sprite_size.xy

with

v_tex_coord